Steam-trap.



J. E: PURSER.

STEAM TRAP.

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STEAM TRAP. APPLIOATION FILED APB. 6, 190 8.

Patented Feb. 2, 1909.

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UNITED NSTATES y PATENT onricn.N

JAMES EDWARD PURSER, OF WINDSOR, ONTARIO, GANADA',:ASSIGNOR, BY MESNEASSIGN- MENTS, TO H. I. MOREHEAD, OF DETROIT, MICHIGAN.

STEAM-TRAP.

' Specification of Letters Patent. "lb' ".Lf Patented Feb. 2, 199.

Applieationledprilh, 1908. Serial No. 425,546.

My invention has reference to certain` new and useful improvements'in asteam trap,

the same being 'designed as a `gravity sepa-` rator to separate` waterof condensation from steam. l

My invention consistsin the construction, combination, andAarrangements, vof devices and appliances claimed, `and illustrated inthe accompanying drawings, in which, Y j f y f Figure 1 is a viewinsideelevation. Fig. 2 isa view in horizontal section on the line 2-2 Fig. 1Fig. 3 is a detail view showing` the valve mechanism in the dischargepipe, parts being in vertical section and parts in side elevation, theparts being in normal or closed position. Fig. 4 is a view similar toFig. 3 but showing the valve in open position. Fig. 5 shows in detail asuitable plate and yoke upon which the weighted lever is fulcrumed. Fig.6. is a view in vertical longitudinal section showing parts in sideelevation. Fig. 7 is a vertical -transverse section on the line 7-7 Fig.1.

The purpose of my mvention'is to pro-l Vpermit the contents'of the tankto discharge.

My invention also includes certain otherfeatures hereinafter setV forth.I carryout my invention as follows: In the drawings the numeral 1denotes` any suitable base provided upon opposite sides thereof withinlet and discharge chambers indicated at 2 and 3. An inlet pipe acommunicates with` the chamber 2, and a discharge pipe b communicateswithv the chamber 3. The chambers 2 and 3,*as shown, are

provided with communicating `pipes or f4 and 5, glands 6 and 7 beingcharge pipes a hereinafter described andl r10 within the casting.

Y end thereof having a channels, respectively,`indicated at Grandv d,the upper ends of which are provided with chambered elbows f and gpreferablymade integral therewith. Upon the said elbows or sleevesaresupported hollow trunnion Varms employed, en-

gaged with the inner ends of the respective elbows in any suitablemanner, as by bolts e to hold a suitable packing h in place.

It will be evident that the trunnion arms communicate through theirrespective elbows and corresponding channels c, d, with the chambersofthe base with which are connected the corresponding inlet and disandb. The trunnion arms 4 and 5 are connected with a channeled casting Zformed with an inlet `channel 8 and a discharge channel 9, said channelsbeing on opposite sides of aseparating diaphragm Said casting is furtherformed with a laterally extended channeled arm 45 and with an uprightchanneled arm46, supporting an upright pipe 11,'the pipe ll'supporting atilting receiving tank or separator 12. The trunnion arms have a rockingmovement in the corresponding elbows permittingthe tank to tilt. Itlwill be understood that the'tank is supported vupon'the pipe 11 at oneside of its center gravity. The supporting pipe 11 communicates with thechannel 8. A-discharge pipe 13)` communicates with one end of thetiltino' tank as through'a vertical pipe 14, the pipes 13 and 14 beingconnected by an elbow 15. The pipes 13 and-14, and elbow 15,practically' form a single discharge pipe.

'The discharge pipe communicates with the channel 9 and trunnion arm 5.Controlling the discharge channel is a valve mechanism 16 of anysuitable construction, that shown herewith, comprising a valve case 47threaded into the channeled arm 45 at one end thereof, and yconnected atits opposite end with the discharge pipe 13 as by a suitable pipecoupling 48. A valve 17 seats upon the valve seat 18 within the case. leof'said valve is shownfjointedly connected at its upper end with anormally horizontally extended lever 19, said lever at lone linkconnection with a yoke 2O provided with a guide arm y' to guide themovement of the valve lever. The opposite endof the valve lever is shownprovidedr with a vertically depending stop 21to contact with the basewhen the tank The stem ioo llO

tilts tliei eby holding the valve 17, and permitting the valve seat todrop away therefronrupon the farther tilting of the tank whereby thevalve mechanism is opened. l would have it understood that this valvemechanism, however, may be located in -the discharge pipe anywherebetween the casting' Z and the entrance of the discharge pipe into thetank. rlhe valve while seated, or closed, will hold the content-s of thetank in check from passing through the discharge pipe while the tank isfilling, until the weightof water in the tank causes the tank to tilt.

To hold the tank in normal position while filling, l provide a weightedllever 22 preferably bifureated, as shown in Figs. 2 and 7, said leverbeing provided with a weight 9.3 which may be adjusted thereupon. Theend of the weighted lever opposite the weight, is arranged to supportthe corresponding end of the tank andhold the tank in normal positionuntil the weight of water therein overbalances the weight upon saidlever. To

this end the weighted lever is Vshown engaged with a pipe yfitting l5 inthe pipe 13. The weighted lever is fulcrumed upon a yoke 25 vcarriedupon a plate 26, said plate being made longitudinally adjustable uponthe base in any Vsuitable manner. As shown the base is constructed witha longitudinally elongated slot 27, through which the plate may bebolteduponthe base. The plate may also be laterally adjusted upon the base b vproviding the plate with a laterally elongated slot 28 through which thebolt 29 is passed. Said plate is shown provided with recesses 30 uponthe upper side thereof in which the corresponding lower extremities ofthe yoke 25 rest. The upper ends of said yokes are shown .engaged incorresponding recesses 3l .in the bifurcated arms of the weighted lever.

he rear end of the tank is preferably provided with a shoulder 28through which is passed a rocking bar 39 having a jointed engagement atits lower end upon the base asshown at 40. Above and below saidshoulder, said bar vis provided with buffer springs 4l and 4t2 to takethe shock in the movement.

of the tank.

The operation of the device will readily be understood. When .the tankis in a horizontal position the valve is closed, holding the steam andwater on .the upper side of the valve in check, until the tank fillssufiiciently to overbalance the weight. The tank then tilts and opensthe valve, the tank lying in tilted position until the weight restoresthe tank to normal position.

ln order to secure the ready adjustment or engagement of the trunnionarms in posi` tion, I prefer to provide the elbow f with a'plugV 43having a threaded engagement therein, the plug being chambered at itsinner end to afford communication between the corresponding trunnion andthe corresponding upright pipe o. By removing the plug it will r .adilybe seen that the corre sponding trunnion arm may be inserted in placeand moved outward in the corresponding elbow suliciently to enable theouter end of the other trunnion arm to be inserted in place, after whichthe trunnion arm may be shifted laterally so that the plug may berengaged in place to hold the trunnion arm in proper position. The boltswhereby the stuffing boxes are held in place are preferably arranged inthe corresponding casting, as indicated in section, for example, in thecasting g, in Fig. 2. rlhe stufling boxes may thus be simply slippedover the ends of the bolts, nuts m being provided to hold the stuflingboxes in place.

To make sure that the plug 43 when in place has its inner chamber incommunication with the pipe o, l prefer to provide the upper surface ofthe plug with a line as in dicated, for example, at del, Fig. 2, toindicate when the plug is properly entered.

iV hat l claim as my invention is:

l. A. steam trap comprising a tilting tank, hollow trunnionscommunicating with the tank upon wiiich said tank tilts, chan'lberedfittings to receive the outer extremities of said trunnions, a removableplug in one of said fittings to bear against the adjacent end of thecorresponding trunnion through which. the trunnion communicates with thecorresponding fitting, a weighted lever to hold the tank in normalposition, a discharge pipe communicating with the tank and with one ofsaid trunnions, and a valve located in the discharge pipe.

2. A steam tap comprising a base chambered on opposite sides thereof,upright channeled arms communicating with the chambers of the base,hollow trunnions rocking in said channeled arms, a tilting tanksupported upon said trunnions and communicating with one of saidtrunnions, a discharge pipe communicating with the other of saidtrunnions and with said tank, valve mechanism in the discharge pipe tohold the tank in normal position until the weight of water in the tankcauses the tank to tilt, and a weight to hold the tank in normalposition, said valve mechanism provided with a vertically seating valve,a normally horizontally extended lever connected with the stem of thevalve, and a vertically depending stop jointedly connected with the rearend of the lever to hold the lever and the valve when the tank tilts,permitting the valve seat to drop away from the valve upon the tiltingof the tank.

3. A steam trap comprising a base chambered on opposite sides thereof,upright channels communicating with the chambers of the base, ohamberedfittings upon the upthe tank to tilt, and a weight to hold the 10 perends of said channels, hollow trunnions tank in normal position.

engaged in said ittings, stuHing boxes about In testimony whereof I havesigned this said trunnions engaged with the Correspondspecification inpresence of two witnesses.

f ing ittings, a discharge pipe communicating 'l p JAMES EDWARD PURSERwith the tank and with the other of said Y trunnions, a valve seated inthe discharge Witnesses: p pipe to hold the tank in normal position N.S. `TRIGHT,

until the weight of water n the tank causes Gr.Y E. MCGRANN.

